Power battery module with heat dissipation structure and battery pack

Abstract

The utility model discloses a power battery module with a heat dissipation structure and a battery pack, which belong to the technical field of power battery packs and comprise a shell, a partition plate, a battery core and a cooling component, the cooling assembly comprises a plurality of groups of heat conduction blocks arranged among one sides of the plurality of groups of battery cells, a plurality of groups of heat absorption pipes are arranged in the plurality of groups of heat conduction blocks, the two ends of the plurality of groups of heat absorption pipes are connected with a liquid supply mechanism through pipelines, and a plurality of groups of air holes are formed in one ends of the plurality of groups of heat conduction blocks in a penetrating manner; two groups of fans are arranged at one ends of the plurality of groups of heat conduction blocks and located at one end in the shell; according to the utility model, the heat conduction block, the heat absorption pipe, the liquid supply mechanism, the air holes and the fan are matched for use, so that a combined heat dissipation effect of liquid cooling and air cooling can be formed, the problems that the heat dissipation mode of the battery core is single and the heat dissipation effect is poor are solved, and efficient heat dissipation and temperature uniformity are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to power battery pack technical field, concretely is a kind of power battery module and battery pack with heat dissipation structure. BACKGROUND

[0002] With the development of economy and the progress of science and technology, the demand for energy is gradually increasing. As a clean secondary energy, new energy has the advantages of small pollution and renewable, and is favored by more and more people. Usually, the storage and utilization of new energy is realized by power monomer battery pack. Each monomer battery pack is composed of multiple battery modules, and each battery module is composed of multiple monomer batteries in series and parallel. In recent years, in order to improve the energy density of energy storage system, the monomer battery of power monomer battery pack generally adopts square aluminum shell large cell. Such monomer battery has the characteristics of thick thickness, high height and large overall size. There is a demand for high-rate operation electrochemical energy storage system in the market, and high-rate operation has high requirements for monomer battery.

[0003] Chinese patent with publication number CN213150865U discloses a battery module and a power battery pack. The battery module includes a shell assembly, an internal accommodation groove, a cell assembly accommodated in the accommodation groove, a heat sink, and a heat-conducting glue on the side of the heat sink close to the cell assembly. The heat-conducting glue connects the cell assembly. The power battery pack includes the above-mentioned battery module.

[0004] The battery module and the power battery pack disclosed in the above-mentioned patent still have some obvious shortcomings in actual use. The battery module has a single battery core cooling method, which leads to poor cooling effect. Therefore, we need to provide a power battery module and a battery pack with heat dissipation structure. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a power battery module and a battery pack with heat dissipation structure, which solves the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a power battery module with heat dissipation structure, comprising a shell, a partition plate is arranged inside the shell, a plurality of groups of battery cores are arranged on the top of the partition plate and inside the shell, and a cooling assembly for cooling the battery cores is connected between one side of the plurality of groups of battery cores.

[0007] The cooling assembly comprises a plurality of groups of heat-conducting blocks arranged between the sides of the plurality of groups of battery cores, a plurality of groups of heat-absorbing pipes arranged in the plurality of groups of heat-conducting blocks, a liquid supply mechanism for circulating liquid in the heat-absorbing pipes and connected to the two ends of the plurality of groups of heat-absorbing pipes through pipes, a plurality of groups of air-permeable holes penetrating one end of the plurality of groups of heat-conducting blocks, and two groups of fans arranged at one end of the plurality of groups of heat-conducting blocks and located inside the shell.

[0008] Preferably, the liquid supply mechanism comprises an annular heat-dissipating pipe arranged below the partition plate and at the lower end inside the shell, a plurality of groups of heat-dissipating fins uniformly and fixedly arranged on the surface of the annular heat-dissipating pipe, and a liquid discharge pipe in communication with one end of the annular heat-dissipating pipe through a pipe.

[0009] Preferably, the other end of the annular heat-dissipating pipe is connected to a micro water pump through a pipe and at one end of the top of the partition plate, the micro water pump is in communication with a liquid supply pipe at one end thereof, and the other end of the liquid supply pipe is in communication with the other end of the plurality of groups of heat-absorbing pipes through a pipe.

[0010] Preferably, the two ends of the shell are provided with two groups of ventilation openings penetratingly arranged therein, and the ventilation openings are provided with a dust prevention assembly for preventing dust from flowing into the ventilation openings.

[0011] Preferably, the dust prevention assembly comprises a mounting frame arranged in the inner cavity of the ventilation opening, a filter plate arranged in the mounting frame, and a mounting mechanism arranged between the mounting frame and the ventilation opening and connecting the mounting frame to the inner wall of the ventilation opening.

[0012] Preferably, the mounting mechanism comprises four groups of mounting blocks fixedly arranged at the four corners of the inner side of the mounting frame and located at one side of the filter plate, a mounting rod slidingly connected to the inner side of the mounting block, and an elastic spring arranged on the surface of the mounting rod and located in the inner side of the mounting block.

[0013] Preferably, the mounting mechanism further comprises four groups of mounting holes arranged at the four corners of the inner wall of the ventilation opening, the mounting holes are arranged in the inner side of the mounting rod and the bottom end of the mounting rod is inserted into the inner cavity of the mounting hole.

[0014] A battery pack comprising the power battery module with a heat-dissipating structure according to any one of the preceding embodiments.

[0015] Compared with the prior art, the power battery module with a heat-dissipating structure has the following advantages:

[0016] The utility model discloses a heat conduction block, heat absorption pipe, liquid supply mechanism, air hole and fan's cooperation uses, and heat absorption pipe inserts the inside of heat conduction block, directly contacts the side of battery core, utilizes liquid supply mechanism to make cooling liquid circulation, absorbs heat quickly, then utilizes air hole and fan to form directional airflow channel, strengthens the heat dissipation of heat conduction block surface, balances the temperature field inside module simultaneously, thereby can form liquid cooling and air cooling common composite heat dissipation effect, solves the single battery core heat dissipation mode, and the problem that leads to its poor heat dissipation effect, realizes efficient heat dissipation and temperature uniformity.

[0017] Other features and advantages of the present utility model will be set forth in the following description of the utility model, and, in part will become apparent from the description, or be learned by practice of the present utility model. The purpose and other advantages of the present utility model can be achieved and obtained by the structure indicated in the description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is the structural schematic diagram of the utility model micro water pump;

[0020] Figure 3 It is the structural schematic diagram of the utility model heat conduction block;

[0021] Figure 4 It is the structural schematic diagram of the utility model vent;

[0022] Figure 5 It is the structural schematic diagram of the utility model mounting block.

[0023] In the drawing: 1, shell, 2, baffle, 3, battery core, 4, heat conduction block, 5, heat absorption pipe, 6, air hole, 7, fan, 8, annular radiating pipe, 9, radiating fin, 10, liquid discharge pipe, 11, micro water pump, 12, liquid supply pipe, 13, vent, 14, mounting frame, 15, filter plate, 16, mounting block, 17, mounting rod, 18, extension spring, 19, mounting hole. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Please refer to Figures 1-5The utility model provides a technical scheme: a power battery module and battery pack with heat dissipation structure, including casing 1, the inside of casing 1 is provided with baffle 2, the top of baffle 2 and located inside casing 1 is provided with several groups of battery core 3, and the cooling assembly for cooling battery core 3 is connected between the side of several groups of battery core 3.

[0026] As preferred, the cooling assembly comprises: heat-conducting blocks 4, heat-absorbing pipes 5, a liquid supply mechanism, air vents 6 and fans 7, the heat-conducting blocks 4 are arranged between the sides of the battery core groups 3, the heat-conducting blocks 4 are internally provided with the heat-absorbing pipes 5, the heat-absorbing pipes 5 are connected at both ends by pipes to the liquid supply mechanism for circulating liquid supply inside the heat-absorbing pipes 5, the heat-conducting blocks 4 are provided at one end with the air vents 6, and the heat-conducting blocks 4 are provided at one end inside the casing 1 with the fans 7.

[0027] Specifically, the heat-conducting blocks 4, heat-absorbing pipes 5, liquid supply mechanism, air vents 6 and fans 7 are used in cooperation, the heat-absorbing pipes 5 are embedded in the heat-conducting blocks 4, directly contact the side of the battery core 3, the liquid supply mechanism is used to circulate the cooling liquid, quickly absorb heat, then the air vents 6 and fans 7 form a directional airflow channel, strengthen the heat dissipation of the surface of the heat-conducting blocks 4, and balance the temperature field inside the module, so as to form the effect of liquid cooling and air cooling combined heat dissipation, solve the problem of single heat dissipation mode of the battery core 3 and poor heat dissipation effect, and realize efficient heat dissipation and temperature uniformity.

[0028] As preferred, the liquid supply mechanism comprises: annular heat dissipation pipes 8, heat dissipation fins 9, liquid discharge pipes 10, micro water pumps 11 and liquid supply pipes 12, the annular heat dissipation pipes 8 are arranged below the baffle 2 and at the lower end inside the casing 1, the annular heat dissipation pipes 8 are uniformly fixedly installed with the heat dissipation fins 9 on the surface, one end of the annular heat dissipation pipes 8 is connected by pipes to the liquid discharge pipes 10, the liquid discharge pipes 10 are connected by pipes to one end of the heat-absorbing pipes 5, the other end of the annular heat dissipation pipes 8 is connected by pipes to the micro water pumps 11 at one end on the top of the baffle 2, one end of the micro water pumps 11 is connected by pipes to the liquid supply pipes 12, and one end of the liquid supply pipes 12 is connected by pipes to the other end of the heat-absorbing pipes 5.

[0029] Specifically, the annular heat dissipation pipes 8, heat dissipation fins 9, liquid discharge pipes 10, micro water pumps 11 and liquid supply pipes 12 are used in cooperation, the annular heat dissipation pipes 8 and heat dissipation fins 9 constitute a radiator to cool the cooling liquid absorbing heat, and the heat release of the heat dissipation fins 9 is accelerated by the airflow of the fans 7, so that the heat of the liquid cooling structure can be efficiently transmitted to the environment, the temperature accumulation of the cooling liquid is avoided, and the heat dissipation efficiency of the liquid cooling structure is improved.

[0030] As preferred, two groups of ventilation openings 13 are arranged through two ends of the shell 1, and a dustproof assembly for preventing dust from flowing through the ventilation openings 13 is arranged inside the ventilation openings 13.

[0031] As preferred, the dustproof assembly comprises a mounting frame 14, a filter plate 15 and a mounting mechanism, the mounting frame 14 is arranged in the inner cavity of the ventilation opening 13, the filter plate 15 is arranged inside the mounting frame 14, the mounting mechanism is arranged between the mounting frame 14 and the ventilation opening 13, the mounting frame 14 is connected to the inner wall of the ventilation opening 13 through the mounting mechanism, and the filter plate 15 prevents dust from blocking the air holes 6 or the heat dissipation fins 9, prolongs the service life of the heat dissipation structure, and reduces the heat dissipation efficiency caused by dust accumulation.

[0032] As preferred, the mounting mechanism comprises mounting blocks 16, mounting rods 17, extension springs 18 and mounting holes 19, four groups of the mounting blocks 16 are fixedly arranged at four corners of the inside of the mounting frame 14 and located at one side of the filter plate 15, the mounting rods 17 are slidably connected to the inside of the mounting blocks 16, the extension springs 18 are arranged on the surface of the mounting rods 17 and located in the inside of the mounting blocks 16, four groups of the mounting holes 19 are arranged at four corners of the inner wall of the ventilation opening 13, the mounting holes 19 are arranged in the inside of the mounting blocks 16 and are adapted to the bottom end of the mounting rods 17, and the bottom end of the mounting rods 17 is inserted into the inner cavity of the mounting holes 19, the mounting frame 14 is quickly plugged and unplugged through the extension springs 18 and the mounting rods 17, the filter plate 15 is conveniently cleaned or replaced, and the dustproof effect of the device is ensured.

[0033] A battery pack comprising the power battery module with the heat dissipation structure.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A power battery module with a heat dissipation structure, characterized in that: Including the shell (1), the inside of the shell (1) is provided with a partition (2), the top of the partition (2) and inside the shell (1) is provided with several groups of battery core (3), one side of several groups of battery core (3) is connected with cooling assembly for cooling battery core (3); The cooling assembly includes several groups of heat conduction blocks (4) arranged between one side of several groups of battery core (3), the inside of several groups of heat conduction blocks (4) is provided with several groups of heat absorption pipes (5), both ends of several groups of heat absorption pipes (5) are connected with liquid supply mechanism for circulating liquid supply in the inside of heat absorption pipes (5) through pipeline, one end of several groups of heat conduction blocks (4) is penetrated with several groups of air holes (6), one end of several groups of heat conduction blocks (4) and inside the shell (1) is provided with two groups of fans (7). 2.The power battery module with a heat dissipation structure according to claim 1, characterized in that: The liquid supply mechanism includes annular heat dissipation pipe (8) arranged below the partition (2) and inside the lower end of the shell (1), the surface of the annular heat dissipation pipe (8) is uniformly fixed with several groups of heat dissipation fins (9), one end of the annular heat dissipation pipe (8) is communicated with liquid discharge pipe (10) through pipeline, the liquid discharge pipe (10) is communicated with one end of several groups of heat absorption pipes (5) through pipeline.

3. The power battery module with heat dissipation structure according to claim 2, characterized in that: The other end of the annular heat dissipation pipe (8) is connected with micro water pump (11) through pipeline and one end of the top of the partition (2), one end of the micro water pump (11) is communicated with liquid supply pipe (12), one end of the liquid supply pipe (12) is communicated with the other end of several groups of heat absorption pipes (5) through pipeline.

4. The power battery module with heat dissipation structure according to claim 1, characterized in that: Both ends of the shell (1) are penetrated with two groups of ventilation openings (13), the inside of the ventilation opening (13) is provided with dust prevention assembly for preventing dust of airflow.

5. The power battery module with heat dissipation structure according to claim 4, characterized in that: The dust prevention assembly includes mounting frame (14) arranged in the inner cavity of the ventilation opening (13) in a matched manner, the inside of the mounting frame (14) is provided with filter plate (15), mounting mechanism is arranged between the mounting frame (14) and the ventilation opening (13), and the mounting frame (14) is connected to the inner wall of the ventilation opening (13) through the mounting mechanism.

6. The power battery module with heat dissipation structure according to claim 5, characterized in that: The mounting mechanism includes four groups of mounting blocks (16) fixedly installed at four corners of the inside of the mounting frame (14) and located at one side of the filter plate (15), the inside of the mounting block (16) is slidably connected with mounting rod (17), and the surface of the mounting rod (17) is located in the inside of the mounting block (16) and provided with telescopic spring (18).

7. The power battery module with heat dissipation structure according to claim 6, characterized in that: The mounting mechanism further includes four groups of mounting holes (19) arranged at four corners of the inner wall of the ventilation opening (13), the inside of the mounting hole (19) is arranged in a matched manner with the bottom end of the mounting rod (17), and the bottom end of the mounting rod (17) is inserted into the inner cavity of the mounting hole (19).

8. A battery pack, characterized by: A power battery module with a heat dissipation structure according to any one of claims 1-7. A power battery module with a heat dissipation structure according to any one of claims 1-7.

Images